216003

Ammonium phosphate monobasic

ACS reagent, ≥98%

• Synonym(s): APM, mono-Ammonium phosphate, prim-Ammonium phosphate, Ammonium dihydrogenphosphate
• Linear Formula: NH₄H₂PO₄
• CAS Number: 7722-76-1
• Molecular Weight: 115.03
• EC Number: 231-764-5
• MDL number: MFCD00003396
• UNSPSC Code: 12352300
• PubChem Substance ID: 329752181
• NACRES: NA.21

Properties

• grade: ACS reagent
• vapor pressure: <0.001 hPa ( 20 °C)
• Assay: ≥98%
• form: crystals or chunks
• impurities: ≤0.005% NH₄OH pptd.; ≤0.005% insolubles
• pH: 3.8-4.4 (25 °C, 5%)
• mp: 190 °C (dec.) (lit.)
• anion traces: chloride (Cl^-): ≤5 ppm; nitrate (NO₃^-): ≤0.001%; sulfate (SO₄^2-): ≤0.01%
• cation traces: Ca: 0.001%; Fe: ≤0.001%; K: ≤0.005%; Mg: 0.005%; Na: ≤0.005%; heavy metals (as Pb): ≤5 ppm
• SMILES string: N.OP(O)(O)=O
• InChI: 1S/H3N.H3O4P/c;1-5(2,3)4/h1H3;(H3,1,2,3,4)
• InChI key: LFVGISIMTYGQHF-UHFFFAOYSA-N

Description

Application

Employed in the synthesis of the first example of a mixed-valence ammonium iron phosphate, NH₄Fe₂(PO₄)₂.

Other Notes

Go to Redi-Dri^™ Product Listing 795461

Legal Information

Redi-Dri is a trademark of Sigma-Aldrich Co. LLC

Safety Information

• Storage Class Code: 13 - Non Combustible Solids
• WGK: WGK 1
• Flash Point(F): Not applicable
• Flash Point(C): Not applicable